Yes, I know. The car animation itself shouldn't be too difficult. I've even experimented with it in the past, although I'm not entirely sure how I'm going to implement it. Should it stay in the upward position as long as you're going uphill, or should it only stay upward while the road is curving upward? Those are the questions I'm grappling with.
However, animating the occupants in the car is a real pain in the ass. xD